Cephalopoda - Ammonitida - Olcostephanidae
Full reference: R. W. Imlay. 1960. Ammonites of Early Cretaceous age (Valanginian and Hauterivian) from the Pacific Coast states. United States Geological Survey Professional Paper 334(F):1-228
Belongs to Olcostephanus according to R. W. Imlay 1960
Sister taxa: Olcostephanus (Jeannoticeras), Olcostephanus (Olcostephanus), Olcostephanus (Viluceras), Olcostephanus astierianus, Olcostephanus atherstoni, Olcostephanus delicatecostatus, Olcostephanus detonii, Olcostephanus paucicostatus, Olcostephanus pecki, Olcostephanus sanlazarensis, Holcostephanus (Astieria) josephinus, Astieria neohispanica, Astieria raricostata, Astieria bangei, Astieria zacatecana, Maderia casitensis, Maderia marcoensis, Maderia coahuilensis, Maderia marcosensis, Taraisites bosei, Subastieria sulcosus, Subastieria balkanica, Subastieria inordinata, Subastieria sulcosae
Ecology: fast-moving nektonic carnivore
Distribution: found only at USGS 26790 [Myrtle Fm] (Cretaceous of Oregon)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.